bullet
The barrel guides and accelerates the bullet out of the rifle, and imparts spin to the bullet to stabilize the bullet in flight.
No, a bullet does not reach its full speed immediately upon leaving the muzzle. It needs time to accelerate due to the forces acting on it like wind resistance and gravity. The bullet will gradually reach its maximum velocity as it travels through the air.
When a bullet is fired from a 9mm handgun, the temperature of the bullet can reach several hundred degrees Celsius due to the friction and compression generated from the explosion in the chamber and the acceleration down the barrel.
Yes, a bullet must be the same diameter as the barrel (unless it is a shotgun).
Depends on the speed of the bullet, and the length of the barrel. In the case of a .22 rifle, firing a bullet at 1200 feet per second, from a 16 inch barrel, it will take 1/75th of a second for the bullet to leave the barrel.
Time taken by a bullet to leave barrel is 10-3 Seconds.
The rifling in the barrel. These are grooves cut on the interior of the barrel that twist around and cause the bullet to spin as it passes down the barrel. The spin stabilizes the bullet and promotes accuracy.
Bullet trajectory is the path the bullet travels once it leaves the barrel. Bullets travel on a long arch and cross the line of sight twice. Once shortly after leaving the barrel and once again on target assuming the sights are properly zeroed. This is the trajectory of the bullet. Bullet velocity is the speed at which the bullet is traveling along it's trajectory.
Barrel contains the force of expanding gasses, as it pushes bullet out of the barrel.
The gun barrel is the metal part that the bullet comes out of.
A bullet rotates in flight due to the rifling inside the barrel of a gun. The rifling creates grooves that grip the bullet and cause it to spin as it travels down the barrel. This spin stabilizes the bullet's trajectory and improves accuracy.